# A thin flattened disc (about 1:6) tumbling near its highest rotational energy state.

> Still possible: A thin flattened disc (about 1:6) tumbling near its highest rotational energy state.

Source: https://mysteriesdept.com/mysteries/oumuamua/answers/ANS0CSKCF9453KG/a-thin-flattened-disc-about-1-6-tumbling-near-its-highest  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[1I/'Oumuamua](https://mysteriesdept.com/mysteries/oumuamua)[What shape was 'Oumuamua, and how did it spin?](https://mysteriesdept.com/mysteries/oumuamua/questions/QST0CSKBZWY4KE5/what-shape-was-oumuamua-and-how-did-it-spin)Answer

Answer · 1I/'Oumuamua

# A thin flattened disc (about 1:6) tumbling near its highest rotational energy state.

A thin flattened disc (about 1:6) tumbling near its highest rotational energy state.

**Still possible** Answers **1** questionPublished0

## Where it stands

**Still possible** Its tests haven't settled it: three pieces of evidence for, none against. It needs two reviews to be accepted.

## What it predicts

- Light-curve minima depths match an oblate body.
- Mass loss by sublimation flattens a body over time.

## What would rule it out

- A light-curve inversion that excludes oblate shapes at high confidence.

## Evidence 3 for · none against

[Physical light-curve modelling favours the disc.](https://mysteriesdept.com/mysteries/oumuamua/evidence/EVD0CSKCFRR0N78/physical-light-curve-modelling-favours-the-disc)

Suggestive

FOR

[Sublimation of a volatile ice drives the axis ratio to extreme values.](https://mysteriesdept.com/mysteries/oumuamua/evidence/EVD0CSKCG0J1CWD/sublimation-of-a-volatile-ice-drives-the-axis-ratio-to)

Speculative

FOR

[The spin data fit either a cigar or a very flat spheroid and cannot separate them.](https://mysteriesdept.com/mysteries/oumuamua/evidence/EVD0CSKCFGY7MPV/the-spin-data-fit-either-a-cigar-or-a-very-flat-spheroid-and)

Established

FOR

## The questions it answers

[What shape was 'Oumuamua, and how did it spin?](https://mysteriesdept.com/mysteries/oumuamua/questions/QST0CSKBZWY4KE5/what-shape-was-oumuamua-and-how-did-it-spin)

Part of [What was 'Oumuamua made of?](https://mysteriesdept.com/mysteries/oumuamua/questions/QST0CSKBZN458NQ/what-was-oumuamua-made-of)

Open3 answers, none ahead

## Cite it

```
Mysteries Department. (2026). A thin flattened disc (about 1:6) tumbling near its highest rotational energy state. [Answer ANS0CSKCF9453KG]. https://mysteriesdept.com/r/ANS0CSKCF9453KG
```

Key

**ANS** 0CSKCF9453KG

Kind

Answer · hypothesis

Origin

Published

Version

1

Added by

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